Peter’s father Juris Greste has told reporters of the dismay and anger that washed over him as his son faced court, particularly when he saw footage of the “fortress” surrounding his son, colleagues and the entire court process.

Greste’s mother Lois read out a consulate report of the court proceedings, which included messages he had yelled out for his family, including “I love them, stay strong”, “I’m OK” and “I feel your support”.

She said Greste had been able to tell other reporters that public support was vital to his case and it was protecting them during their incarceration.

While the Grestes said they respected Egypt’s justice system, they were concerned their son’s rights as a prisoner were not being honoured, including the amount of time he was allowed to spend outside.

Juris Greste said he was disappointed he had heard little from foreign minister Julie Bishop and prime minister Tony Abbott about Peter’s case in recent weeks.

Prominent London-based barrister Geoffrey Robertson QC has said the government is not doing enough to help Greste and should lodge a complaint with the UN as his detainment breached international law.

The federal government has sought assurances from their Egyptian counterparts that Grestes case will be handled fairly.

“The government regrets that Mr Greste’s detention period has been extended further and that his bail application was denied by the Egyptian court,” a Department of Foreign Affairs and Trade spokesman said in a statement.

“We seek assurances from the Egyptian government that Grestes case will be handled fairly and expeditiously and will respect basic standards of justice.”

Greste is among 20 defendants accused of belonging to and aiding the Muslim Brotherhood terrorist organisation and threatening national security.

Of the 20, only eight were present in the courtroom. The rest are at large and will be tried in absentia.